I've been doing some programming "by hand" to redesign an insrument panel. What I need is to be able to redesign (or recreate) some of the insruments themselves to reflect correct airspeed markings etc. Can I use Abacus for this or is there something better out there that will not only allow me to redesign the placement of instruments, but also edit the insrument markings?
Abacus should be the easiest for you to use.
Here you go: http://www.abacuspub.com/catalog/s363.htm
Another option with similar operating features. Also includes FSX version and a little cheaper. http://www.fspanelstudio.com/